h_getopt.c revision 272343 
1/*	$NetBSD: h_getopt.c,v 1.1 2011/01/01 23:56:49 pgoyette Exp $	*/
2
3/*-
4 * Copyright (c) 2002 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <stdio.h>
33#include <string.h>
34#include <stdlib.h>
35#include <unistd.h>
36#include <err.h>
37
38#define	WS	"\t\n "
39#define	debug	0
40
41int
42main(int argc, char *argv[])
43{
44	size_t len, lineno = 0;
45	char *line, *ptr, *optstring = NULL, *result = NULL;
46	char buf[1024];
47	char *args[100];
48	char arg[100];
49	int nargs = -1;
50	int c;
51
52	while ((line = fparseln(stdin, &len, &lineno, NULL, 0)) != NULL) {
53		if (strncmp(line, "load:", 5) == 0) {
54			if (optstring)
55				free(optstring);
56			optstring = strtok(&line[6], WS);
57			if (optstring == NULL)
58			    errx(1, "missing optstring at line %ld",
59				(unsigned long)lineno);
60			optstring = strdup(optstring);
61			if (debug)
62				fprintf(stderr, "optstring = %s\n", optstring);
63		} else if (strncmp(line, "args:", 5) == 0) {
64			for (; nargs >= 0; nargs--) {
65				if (args[nargs] != NULL)
66					free(args[nargs]);
67			}
68			args[nargs = 0] = strtok(&line[6], WS);
69			if (args[nargs] == NULL)
70				errx(1, "missing args at line %ld",
71				    (unsigned long)lineno);
72
73			args[nargs] = strdup(args[nargs]);
74			while ((args[++nargs] = strtok(NULL, WS)) != NULL)
75				args[nargs] = strdup(args[nargs]);
76			if (debug) {
77				int i = 0;
78				for (i = 0; i < nargs; i++)
79					fprintf(stderr, "argv[%d] = %s\n", i,
80					    args[i]);
81			}
82		} else if (strncmp(line, "result:", 7) == 0) {
83			buf[0] = '\0';
84			optind = optreset = 1;
85			if (result)
86				free(result);
87			result = strtok(&line[8], WS);
88			if (result == NULL)
89				errx(1, "missing result at line %ld",
90				    (unsigned long)lineno);
91			result = strdup(result);
92			if (nargs == -1)
93				errx(1, "result: without args:");
94			if (debug)
95				fprintf(stderr, "result = %s\n", result);
96			while ((c = getopt(nargs, args, optstring)) != -1)  {
97				if (c == ':')
98					err(1, "`:' found as argument char");
99				if ((ptr = strchr(optstring, c)) == NULL) {
100					snprintf(arg, sizeof(arg), "!%c,", c);
101					strcat(buf, arg);
102					continue;
103				}
104				if (ptr[1] != ':')
105					snprintf(arg, sizeof(arg), "%c,", c);
106				else
107					snprintf(arg, sizeof(arg), "%c=%s,",
108					    c, optarg);
109				strcat(buf, arg);
110			}
111			len = strlen(buf);
112			if (len > 0) {
113				buf[len - 1] = '|';
114				buf[len] = '\0';
115			} else {
116				buf[0] = '|';
117				buf[1] = '\0';
118			}
119			snprintf(arg, sizeof(arg), "%d", nargs - optind);
120			strcat(buf, arg);
121			if (strcmp(buf, result) != 0)
122				errx(1, "`%s' != `%s'", buf, result);
123		}
124		free(line);
125	}
126	return 0;
127}
128